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<div class="title">AssignmentFunctors.h</div>  </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">// This file is part of Eigen, a lightweight C++ template library</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">// for linear algebra.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">// Copyright (C) 2008-2010 Gael Guennebaud &lt;gael.guennebaud@inria.fr&gt;</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">// This Source Code Form is subject to the terms of the Mozilla</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">// Public License v. 2.0. If a copy of the MPL was not distributed</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160; </div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#ifndef EIGEN_ASSIGNMENT_FUNCTORS_H</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor">#define EIGEN_ASSIGNMENT_FUNCTORS_H</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160; </div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &quot;../InternalHeaderCheck.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160; </div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceEigen.html">Eigen</a> {</div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160; </div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="keyword">namespace </span>internal {</div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;  </div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> DstScalar,<span class="keyword">typename</span> SrcScalar&gt; <span class="keyword">struct </span>assign_op {</div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160; </div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE <span class="keywordtype">void</span> assignCoeff(DstScalar&amp; a, <span class="keyword">const</span> SrcScalar&amp; b)<span class="keyword"> const </span>{ a = b; }</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160; </div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;  <span class="keyword">template</span>&lt;<span class="keywordtype">int</span> Alignment, <span class="keyword">typename</span> Packet&gt;</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;  EIGEN_STRONG_INLINE <span class="keywordtype">void</span> assignPacket(DstScalar* a, <span class="keyword">const</span> Packet&amp; b)<span class="keyword"> const</span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="keyword">  </span>{ internal::pstoret&lt;DstScalar,Packet,Alignment&gt;(a,b); }</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;};</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160; </div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="comment">// Empty overload for void type (used by PermutationMatrix)</span></div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> DstScalar&gt; <span class="keyword">struct </span>assign_op&lt;DstScalar,void&gt; {};</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160; </div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> DstScalar,<span class="keyword">typename</span> SrcScalar&gt;</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="keyword">struct </span>functor_traits&lt;assign_op&lt;DstScalar,SrcScalar&gt; &gt; {</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;  <span class="keyword">enum</span> {</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    Cost = NumTraits&lt;DstScalar&gt;::ReadCost,</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;    PacketAccess = is_same&lt;DstScalar,SrcScalar&gt;::value &amp;&amp; packet_traits&lt;DstScalar&gt;::Vectorizable &amp;&amp; packet_traits&lt;SrcScalar&gt;::Vectorizable</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;  };</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;};</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160; </div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> DstScalar,<span class="keyword">typename</span> SrcScalar&gt; <span class="keyword">struct </span>add_assign_op {</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160; </div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE <span class="keywordtype">void</span> assignCoeff(DstScalar&amp; a, <span class="keyword">const</span> SrcScalar&amp; b)<span class="keyword"> const </span>{ a += b; }</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160; </div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;  <span class="keyword">template</span>&lt;<span class="keywordtype">int</span> Alignment, <span class="keyword">typename</span> Packet&gt;</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;  EIGEN_STRONG_INLINE <span class="keywordtype">void</span> assignPacket(DstScalar* a, <span class="keyword">const</span> Packet&amp; b)<span class="keyword"> const</span></div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="keyword">  </span>{ internal::pstoret&lt;DstScalar,Packet,Alignment&gt;(a,internal::padd(internal::ploadt&lt;Packet,Alignment&gt;(a),b)); }</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;};</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> DstScalar,<span class="keyword">typename</span> SrcScalar&gt;</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="keyword">struct </span>functor_traits&lt;add_assign_op&lt;DstScalar,SrcScalar&gt; &gt; {</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;  <span class="keyword">enum</span> {</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    Cost = NumTraits&lt;DstScalar&gt;::ReadCost + NumTraits&lt;DstScalar&gt;::AddCost,</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;    PacketAccess = is_same&lt;DstScalar,SrcScalar&gt;::value &amp;&amp; packet_traits&lt;DstScalar&gt;::HasAdd</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;  };</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;};</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160; </div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> DstScalar,<span class="keyword">typename</span> SrcScalar&gt; <span class="keyword">struct </span>sub_assign_op {</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160; </div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE <span class="keywordtype">void</span> assignCoeff(DstScalar&amp; a, <span class="keyword">const</span> SrcScalar&amp; b)<span class="keyword"> const </span>{ a -= b; }</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160; </div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;  <span class="keyword">template</span>&lt;<span class="keywordtype">int</span> Alignment, <span class="keyword">typename</span> Packet&gt;</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;  EIGEN_STRONG_INLINE <span class="keywordtype">void</span> assignPacket(DstScalar* a, <span class="keyword">const</span> Packet&amp; b)<span class="keyword"> const</span></div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="keyword">  </span>{ internal::pstoret&lt;DstScalar,Packet,Alignment&gt;(a,internal::psub(internal::ploadt&lt;Packet,Alignment&gt;(a),b)); }</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;};</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> DstScalar,<span class="keyword">typename</span> SrcScalar&gt;</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="keyword">struct </span>functor_traits&lt;sub_assign_op&lt;DstScalar,SrcScalar&gt; &gt; {</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;  <span class="keyword">enum</span> {</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    Cost = NumTraits&lt;DstScalar&gt;::ReadCost + NumTraits&lt;DstScalar&gt;::AddCost,</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    PacketAccess = is_same&lt;DstScalar,SrcScalar&gt;::value &amp;&amp; packet_traits&lt;DstScalar&gt;::HasSub</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;  };</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;};</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160; </div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> DstScalar, <span class="keyword">typename</span> SrcScalar=DstScalar&gt;</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;<span class="keyword">struct </span>mul_assign_op {</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160; </div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE <span class="keywordtype">void</span> assignCoeff(DstScalar&amp; a, <span class="keyword">const</span> SrcScalar&amp; b)<span class="keyword"> const </span>{ a *= b; }</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160; </div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;  <span class="keyword">template</span>&lt;<span class="keywordtype">int</span> Alignment, <span class="keyword">typename</span> Packet&gt;</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;  EIGEN_STRONG_INLINE <span class="keywordtype">void</span> assignPacket(DstScalar* a, <span class="keyword">const</span> Packet&amp; b)<span class="keyword"> const</span></div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;<span class="keyword">  </span>{ internal::pstoret&lt;DstScalar,Packet,Alignment&gt;(a,internal::pmul(internal::ploadt&lt;Packet,Alignment&gt;(a),b)); }</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;};</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> DstScalar, <span class="keyword">typename</span> SrcScalar&gt;</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;<span class="keyword">struct </span>functor_traits&lt;mul_assign_op&lt;DstScalar,SrcScalar&gt; &gt; {</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;  <span class="keyword">enum</span> {</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    Cost = NumTraits&lt;DstScalar&gt;::ReadCost + NumTraits&lt;DstScalar&gt;::MulCost,</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    PacketAccess = is_same&lt;DstScalar,SrcScalar&gt;::value &amp;&amp; packet_traits&lt;DstScalar&gt;::HasMul</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;  };</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;};</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160; </div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> DstScalar, <span class="keyword">typename</span> SrcScalar=DstScalar&gt; <span class="keyword">struct </span>div_assign_op {</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160; </div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE <span class="keywordtype">void</span> assignCoeff(DstScalar&amp; a, <span class="keyword">const</span> SrcScalar&amp; b)<span class="keyword"> const </span>{ a /= b; }</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160; </div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;  <span class="keyword">template</span>&lt;<span class="keywordtype">int</span> Alignment, <span class="keyword">typename</span> Packet&gt;</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;  EIGEN_STRONG_INLINE <span class="keywordtype">void</span> assignPacket(DstScalar* a, <span class="keyword">const</span> Packet&amp; b)<span class="keyword"> const</span></div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;<span class="keyword">  </span>{ internal::pstoret&lt;DstScalar,Packet,Alignment&gt;(a,internal::pdiv(internal::ploadt&lt;Packet,Alignment&gt;(a),b)); }</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;};</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> DstScalar, <span class="keyword">typename</span> SrcScalar&gt;</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;<span class="keyword">struct </span>functor_traits&lt;div_assign_op&lt;DstScalar,SrcScalar&gt; &gt; {</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;  <span class="keyword">enum</span> {</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;    Cost = NumTraits&lt;DstScalar&gt;::ReadCost + NumTraits&lt;DstScalar&gt;::MulCost,</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;    PacketAccess = is_same&lt;DstScalar,SrcScalar&gt;::value &amp;&amp; packet_traits&lt;DstScalar&gt;::HasDiv</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;  };</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;};</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160; </div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Scalar&gt; <span class="keyword">struct </span>swap_assign_op {</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160; </div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE <span class="keywordtype">void</span> assignCoeff(Scalar&amp; a, <span class="keyword">const</span> Scalar&amp; b)<span class="keyword"> const</span></div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;<span class="keyword">  </span>{</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;<span class="preprocessor">#ifdef EIGEN_GPUCC</span></div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    <span class="comment">// FIXME is there some kind of cuda::swap?</span></div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    Scalar t=b; <span class="keyword">const_cast&lt;</span>Scalar&amp;<span class="keyword">&gt;</span>(b)=a; a=t;</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    <span class="keyword">using</span> std::swap;</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    swap(a,<span class="keyword">const_cast&lt;</span>Scalar&amp;<span class="keyword">&gt;</span>(b));</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;  }</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;};</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Scalar&gt;</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;<span class="keyword">struct </span>functor_traits&lt;swap_assign_op&lt;Scalar&gt; &gt; {</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;  <span class="keyword">enum</span> {</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;    Cost = 3 * NumTraits&lt;Scalar&gt;::ReadCost,</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    PacketAccess = </div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;<span class="preprocessor">    #if defined(EIGEN_VECTORIZE_AVX) &amp;&amp; EIGEN_COMP_CLANG &amp;&amp; (EIGEN_COMP_CLANG&lt;800 || defined(__apple_build_version__))</span></div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;    <span class="comment">// This is a partial workaround for a bug in clang generating bad code</span></div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;    <span class="comment">// when mixing 256/512 bits loads and 128 bits moves.</span></div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;    <span class="comment">// See http://eigen.tuxfamily.org/bz/show_bug.cgi?id=1684</span></div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;    <span class="comment">//     https://bugs.llvm.org/show_bug.cgi?id=40815</span></div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;    0</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;<span class="preprocessor">    #else</span></div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;    packet_traits&lt;Scalar&gt;::Vectorizable</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;<span class="preprocessor">    #endif</span></div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;  };</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;};</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160; </div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;} <span class="comment">// namespace internal</span></div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160; </div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;} <span class="comment">// namespace Eigen</span></div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160; </div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;<span class="preprocessor">#endif </span><span class="comment">// EIGEN_ASSIGNMENT_FUNCTORS_H</span></div>
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